- Country: Singapore
- Genres: Action, Horror
- Release: 2023-01-05
- Director: J.D. Chua
- Writers: Tang Chi Sim , Siew Pek Chye , Juan Foo , Allan Ho
- Language: N/A
- Stars: Jesseca Liu , Nathaniel Ng , Patrick Pei-hsu Lee , Johnny Ng , Peter Yu , Ashley Seow , Andie Chen , Alan Tan
- Runtime: 80 min
- Awards: N/A
- AKA: Circle Line (Singapore) , Circle Line
- Plot:
Trapped in the underground train tunnel system, a single mother’s resolve to protect her son is tested to the extreme as both of them are the few remaining survivors of an attack by a monster. Meanwhile in the control room, duty engineers fight desperately to rescue the trapped survivors.
- IMDB:tt6562232